Fabric-frame for embroidering-machines.



K..EGGART.

FABRIC FRAME FOR EMBROIDERING MACHINES. APPLICATION map OCT. 30. 1916.

1,234,741 r Patented J 31, 1917.

UNITED STATES PATENT OFFICE.

KARL EGGART, 0F ARBON, SWITZERLAND, ASSIGNOR TO THE FIRM 0F ADOLPH SAUIBIER,

OF ARBON, SWITZERLAND.

FABRIC-FRAME FOR EMBRCIDERING-MACHINES.

Specification of Letters Patent.

Patented July 31, 1917.

Application filed October 30, 1916. Serial N 0. 128,402.

To all whom it may concern:

Be it known that I, KARL EGGART, a citizen of the Republic of Switzerland, residing at Arbon, Switzerland, have invented certain new and useful Improvements in Fabric Frames for Embroidering Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing, and to letters or figures of reference marked thereon, which form a part of this specification.

It is a well known fact, that the fabric to be embroidered and stretched between two fabric-rollers of a fabric-frame comes to lie in a different plane, and therefore also at a different distance from the needles, when the upper fabric-roller is empty and the lower fabric-roller is full, than is the case, when the upper fabric-roller is full and the lower one is empty, if no special adjusting means are provided in connection with the fabric-rollers to permit an adjustment of the latter relatively to the needles. Such adjusting means, heretofore used, comprise an adjusting screw and movable bearingblocks for the rollers, arranged in suitable guides, so that the rollers may be adjusted toward and from the true, vertical workplane from time to time, as may be required according to the quantity of fabric on the rollers. It sometimes happens, however, that the rollers sag more or less, not only when the fabric is stretched but when it is unstretched, so that the bearing-blocks jam in the guides, whereby the horizontal adjustment is rendered diflicult or impossible.

The object of this invention is to provide a bearing for the fabric-rollers of embroidering-frames, which eliminates the drawback referred to. To this end the bearing is arranged for the fabric-roller in a pivotal manner on an axis disposed transversely to the plane of the fabric-frame so that it may be oscillated about the axis of the adjusting screw.

This invention will now be more fully described with reference to the accompanyembodiment of the invention.

In this drawing Figure 1 is a vertical section on the line III of Fig. 2.

Fig. 2 is a vertical section parallel to the axis of a fabric-roller, and

Fig. 3 shows the fabric-frame of an embroidering-machine provided with fabricrollers supported in the novel manner.

A fabric-roller 1 is supported by means of a gudgeon 2 in a bearing-block 3. This bearing-block is provided with a screwthreaded aperture arranged at right angles to the gudgeon 2 and above the latter. Into this aperture is screwed a threaded bolt 4 rotatably mounted in a frame piece 5. For the purpose of facilitating the actuation of the screw-threaded bolt 4 the latter is provided outside said frame piece 5 at one end with a knob 6 and at the other endwith a collar 7 to prevent longitudinal movement.

The fabric-roller 1, no matter if it carries much or little fabric, and if the latter is stretched or not, or in other words, no matter if it is itself sagging or not, may always swivel or swing upon the screw-threaded bolt 4 and as the bearing 3 for the roller gudgeon 2 is prevented, owing to the provision of the recess 8 in the lateral frame piece 5, from striking against any part when it is moved, the screw-threaded bolt 4 may be easily actuated under all conditions and the fabric-roller 1 may be adjusted in a horizontal direction toward or from the true, vertical work-plane.

What I claim is:

1. In an embroidering machine, in combination, a fabric-frame, a fabric-roller, and a bearing-block for the fabric-roller mounted on the frame to swing about an axis transverse to the length of the roller and to the vertical work-plane.

2. In an embroidering machine, in combination, a fabric-frame, a fabric-roller, and bearing-blocks for the fabric-roller mounted in the frame to swing on axes transverse to the length of the fabric-roller and to the work-plane and adjustable toward and from the Work-plane. V

4. In an eln'broidering machine, in combination, a fabric-frame, a fabric-roller, a screw-threaded bolt mounted rotatably in the frame at right angles to the length of the roller and to the Work-plane, and a bearing blook for the fabric-roller mounted to swing upon said bolt and adjustable thereby toward and from the Work-plane.

In testimony that I claim the foregoing as 15 my invention, I have signed my name in presence of tWo subscribing Witnesses.

KARL EGGART.

Witnesses FRANK TIMMKE, EMIL MEILE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Yatents. Washington, I). G. 

